80% Lower Fire/Safe Marked – Anodized Black

When assembling a custom AR-15 platform, the lower receiver is the core foundation. The 80% lower fire/safe marked – anodized black offers a precision-machined starting point for builders who require clear, permanent selector markings. This component is manufactured to mil-spec dimensions and surface finished for corrosion resistance. Whether you are completing a personal project or stocking inventory, this 80% lower delivers the necessary structural integrity and functional layout without requiring an FFL transfer at the time of purchase.

Overview

The 80% lower fire/safe marked – anodized black is an unfinished receiver that requires final machining before assembly. It is constructed from 7075-T6 aluminum and hard coat anodized to mil-spec type III, class 2. The fire/safe and pictogram markings are laser engraved on both sides, providing clear visual reference for selector positions. This unit is compatible with standard mil-spec lower parts kits and buffer tube assemblies. The 80% Arms manufacturing process ensures consistent wall thickness and critical pin hole locations within tolerance.

Features & Specs

• Material: 7075-T6 aluminum forging with hard coat anodized black finish for durability and wear resistance.
• Markings: Laser engraved fire/safe selector markings with SAFE and FIRE text plus standard NATO pictograms on both sides.
• Compatibility: Accepts mil-spec trigger groups, hammer pins, and selector switches. Pocket dimensions accommodate standard LPK components.

Additional specifications include a 1.250 inch trigger pocket depth and 0.169 inch pin hole diameters. The rear takedown pin lug is reinforced to prevent deformation during high-torque assembly. Each unit is individually inspected for surface finish uniformity and marking clarity before packaging.

Who It's For

This 80% lower fire/safe marked – anodized black is intended for experienced builders, gunsmiths, and manufacturers who possess the equipment to complete the final machining steps. It is suitable for personal build projects, prototype development, or commercial production runs where the end user has the necessary tooling and competency to finish the receiver. Because the lower is not yet a firearm component requiring serialization, it can be shipped directly to residential or business addresses. This product is not recommended for first-time builders without prior experience with jig-based machining.

Shipping & FFL

• Shipping: This 80% lower does not require shipment to an FFL dealer. It ships directly to your door via common carrier with adult signature required.
• Age Restriction: You must be 18 years or older to purchase. Local and state laws regarding unfinished receivers apply.
• FFL Transfer Disclaimer: This product is not a firearm and does not require a Federal Firearms License (FFL) for purchase or shipment. However, once the receiver is completed, it must be serialized and transferred in accordance with federal, state, and local laws. The buyer assumes full responsibility for compliance with all applicable regulations governing the completion, possession, and transfer of a finished firearm. We recommend consulting with a qualified attorney before completing machining.